<template>
    <a-popover
      trigger="click"
      placement="bottomRight"
      :autoAdjustOverflow="true"
      :arrowPointAtCenter="true"
      v-model="visible"
      overlayClassName="header-notice-wrapper"
      @visibleChange="handleHoverChange"
      :overlayStyle="{ width: '300px', top: '50px' }">
      <template slot="content">
        <a-spin :spinning="loadding">
          <a-tabs>
            <a-tab-pane :tab="msg1Title" key="1">
              <!--<a-list>
                <a-list-item>
                  <a-list-item-meta title="你收到了 14 份新周报" description="一年前">
                    <a-avatar style="background-color: white" slot="avatar" src="https://gw.alipayobjects.com/zos/rmsportal/ThXAXghbEsBCCSDihZxY.png"/>
                  </a-list-item-meta>
                </a-list-item>
                <a-list-item>
                  <a-list-item-meta title="你推荐的 IT大牛 已通过第三轮面试" description="一年前">
                    <a-avatar style="background-color: white" slot="avatar" src="https://gw.alipayobjects.com/zos/rmsportal/OKJXDXrmkNshAMvwtvhu.png"/>
                  </a-list-item-meta>
                </a-list-item>
                <a-list-item>
                  <a-list-item-meta title="这种模板可以区分多种通知类型" description="一年前">
                    <a-avatar style="background-color: white" slot="avatar" src="https://gw.alipayobjects.com/zos/rmsportal/kISTdvpyTAhtGxpovNWd.png"/>
                  </a-list-item-meta>
                </a-list-item>
              </a-list>-->
              <a-list>
                <a-list-item :key="index" v-for="(record, index) in announcement1">
                  <div style="margin-left: 5%;width: 80%">
                    <p><a @click="showAnnouncement(record)">{{ record.titile }}</a></p>
                    <p style="color: rgba(0,0,0,.45);margin-bottom: 0px">{{ record.createTime }} 发布</p>
                  </div>
                  <div style="text-align: right">
                    <a-tag @click="showAnnouncement(record)" v-if="record.priority === 'L'" color="blue">一般消息</a-tag>
                    <a-tag @click="showAnnouncement(record)" v-if="record.priority === 'M'" color="orange">重要消息</a-tag>
                    <a-tag @click="showAnnouncement(record)" v-if="record.priority === 'H'" color="red">紧急消息</a-tag>
                  </div>
                </a-list-item>
                <div style="margin-top: 5px;text-align: center">
                  <a-button @click="toMyAnnouncement()" type="dashed" block>查看更多</a-button>
                </div>
              </a-list>
            </a-tab-pane>
            <a-tab-pane :tab="msg2Title" key="2">
              <a-list>
                <a-list-item :key="index" v-for="(record, index) in announcement2">
                  <div style="margin-left: 5%;width: 80%">
                    <p><a @click="showAnnouncement(record)">{{ record.titile }}</a></p>
                    <p style="color: rgba(0,0,0,.45);margin-bottom: 0px">{{ record.createTime }} 发布</p>
                  </div>
                  <div style="text-align: right">
                    <a-tag @click="showAnnouncement(record)" v-if="record.priority === 'L'" color="blue">一般消息</a-tag>
                    <a-tag @click="showAnnouncement(record)" v-if="record.priority === 'M'" color="orange">重要消息</a-tag>
                    <a-tag @click="showAnnouncement(record)" v-if="record.priority === 'H'" color="red">紧急消息</a-tag>
                  </div>
                </a-list-item>
                <div style="margin-top: 5px;text-align: center">
                  <a-button @click="toMyAnnouncement()" type="dashed" block>查看更多</a-button>
                </div>
              </a-list>
            </a-tab-pane>
          </a-tabs>
        </a-spin>
      </template>
      <span @click="fetchNotice" class="header-notice">
        <a-badge :count="msgTotal">
          <a-icon style="font-size: 16px; padding: 4px" type="bell" />
        </a-badge>
      </span>
      <show-announcement ref="ShowAnnouncement" @ok="modalFormOk"></show-announcement>
    </a-popover>
  </template>
  
  <script>
    import { getAction,putAction } from '@/api/manage'
    import ShowAnnouncement from './ShowAnnouncement'
    import store from '@/store/'
  
  
    export default {
      name: "HeaderNotice",
      components: {
        ShowAnnouncement,
      },
      data () {
        return {
          visible:false,
          loadding: false,
          url:{
            listCementByUser:"/sys/annountCement/listByUser",
            editCementSend:"/sys/sysAnnouncementSend/editByAnntIdAndUserId",
            queryById:"/sys/annountCement/queryById",
          },
          hovered: false,
          announcement1:[],
          announcement2:[],
          msg1Count:"0",
          msg2Count:"0",
          msg1Title:"通知(0)",
          msg2Title:"",
          stopTimer:false,
          websock: null,
          lockReconnect:false,
          heartCheck:null
        }
      },
      computed:{
        msgTotal () {
          return parseInt(this.msg1Count)+parseInt(this.msg2Count);
        }
      },
      mounted() {
        this.listInfo();
        // this.loadData();
        //this.timerFun();
        // this.initWebSocket();
        // this.heartCheckFun();
      },
      destroyed: function () { // 离开页面生命周期函数
        // this.websocketclose();
      },
      methods: {
        timerFun() {
          this.stopTimer = false;
          let myTimer = setInterval(()=>{
            // 停止定时器
            if (this.stopTimer == true) {
              clearInterval(myTimer);
              return;
            }
            this.loadData()
          },6000)
        },
        loadData (){
          try {
            // 获取系统消息
            getAction(this.url.listCementByUser).then((res) => {
              if (res.success) {
                this.announcement1 = res.result.anntMsgList;
                this.msg1Count = res.result.anntMsgTotal;
                this.msg1Title = "通知(" + res.result.anntMsgTotal + ")";
                this.announcement2 = res.result.sysMsgList;
                this.msg2Count = res.result.sysMsgTotal;
                this.msg2Title = "系统消息(" + res.result.sysMsgTotal + ")";
              }
            }).catch(error => {
              console.log("系统消息通知异常",error);//这行打印permissionName is undefined
              this.stopTimer = true;
              console.log("清理timer");
            });
          } catch (err) {
            this.stopTimer = true;
            console.log("通知异常",err);
          }
        },
        fetchNotice () {
          if (this.loadding) {
            this.loadding = false
            return
          }
          this.loadding = true
          setTimeout(() => {
            this.loadding = false
          }, 200)
        },
        showAnnouncement(record){
          putAction(this.url.editCementSend,{anntId:record.id}).then((res)=>{
            if(res.success){
              this.loadData();
            }
          });
          this.hovered = false;
          this.$refs.ShowAnnouncement.detail(record);
        },
        toMyAnnouncement(){  
          this.$router.push("/system/UserAnnouncementList");
          this.visible=false;
        },
        modalFormOk(){
        },
        handleHoverChange (visible) {
          this.hovered = visible;
        },
  
        initWebSocket: function () {
          // WebSocket与普通的请求所用协议有所不同，ws等同于http，wss等同于https
          var userId = store.getters.userInfo.id;
          var url = window._CONFIG['domianURL'].replace("https://","wss://").replace("http://","ws://")+"/websocket/"+userId;
          console.log(url);
          this.websock = new WebSocket(url);
          this.websock.onopen = this.websocketOnopen;
          this.websock.onerror = this.websocketOnerror;
          this.websock.onmessage = this.websocketOnmessage;
          this.websock.onclose = this.websocketOnclose;
        },
        websocketOnopen: function () {
          console.log("WebSocket连接成功");
          //心跳检测重置
          this.heartCheck.reset().start();
        },
        websocketOnerror: function (e) {
          console.log("WebSocket连接发生错误");
          this.reconnect();
        },
        websocketOnmessage: function (e) {
          console.log("-----接收消息-------",e.data);
          var data = eval("(" + e.data + ")"); //解析对象
          if(data.cmd == "topic"){
              //系统通知
            this.loadData();
          }else if(data.cmd == "user"){
              //店家消息
            this.loadData();
          }
          //心跳检测重置
          this.heartCheck.reset().start();
        },
        websocketOnclose: function (e) {
          console.log("connection closed (" + e.code + ")");
          this.reconnect();
        },
        websocketSend(text) { // 数据发送
          try {
            this.websock.send(text);
          } catch (err) {
            console.log("send failed (" + err.code + ")");
          }
        },
  
        openNotification (data) {
          var text = data.msgTxt;
          const key = `open${Date.now()}`;
          this.$notification.open({
            message: '消息提醒',
            placement:'bottomRight',
            description: text,
            key,
            btn: (h)=>{
              return h('a-button', {
                props: {
                  type: 'primary',
                  size: 'small',
                },
                on: {
                  click: () => this.showDetail(key,data)
                }
              }, '查看详情')
            },
          });
        },
  
        reconnect() {
          var that = this;
          if(that.lockReconnect) return;
          that.lockReconnect = true;
          //没连接上会一直重连，设置延迟避免请求过多
          setTimeout(function () {
            console.info("尝试重连...");
            that.initWebSocket();
            that.lockReconnect = false;
          }, 5000);
        },
        heartCheckFun(){
          var that = this;
          //心跳检测,每20s心跳一次
          that.heartCheck = {
            timeout: 20000,
            timeoutObj: null,
            serverTimeoutObj: null,
            reset: function(){
              clearTimeout(this.timeoutObj);
              //clearTimeout(this.serverTimeoutObj);
              return this;
            },
            start: function(){
              var self = this;
              this.timeoutObj = setTimeout(function(){
                //这里发送一个心跳，后端收到后，返回一个心跳消息，
                //onmessage拿到返回的心跳就说明连接正常
                that.websocketSend("HeartBeat");
                console.info("客户端发送心跳");
                //self.serverTimeoutObj = setTimeout(function(){//如果超过一定时间还没重置，说明后端主动断开了
                //  that.websock.close();//如果onclose会执行reconnect，我们执行ws.close()就行了.如果直接执行reconnect 会触发onclose导致重连两次
                //}, self.timeout)
              }, this.timeout)
            }
          }
        },
  
  
        showDetail(key,data){
          this.$notification.close(key);
          var id = data.msgId;
          getAction(this.url.queryById,{id:id}).then((res) => {
            if (res.success) {
              var record = res.result;
              this.showAnnouncement(record);
            }
          })
  
        },
      }
    }
  </script>
  
  <style lang="css">
    .header-notice-wrapper {
      top: 50px !important;
    }
  </style>
  <style lang="scss" scoped>
    .header-notice{
      display: inline-block;
      transition: all 0.3s;
  
      span {
        vertical-align: initial;
      }
    }
  </style>